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- W4296456565 abstract "In this study, a nontraditional tuned mass damper (NTMD), in which a mass, spring, and damper are arranged in series, unlike in a traditional tuned mass damper, is examined for a base isolation (BI) system. The closed-form optimal frequency ratio and damping ratio of the NTMD are obtained by searching “fixed points” and thereafter minimizing the H2 norm of the transfer function from the ground displacement to the relative displacement of the primary structure. The benefit of an optimized NTMD is that it suppresses the isolator displacement without sacrificing other responses. A comprehensive seismic performance evaluation of a linear BI system equipped with the NTMD designed by the proposed method proves that it outperforms some existing optimum design formulae. Moreover, a suite of artificial and recorded ground motions is employed to verify the effectiveness of the designed NTMD incorporated in a benchmark model equipped with a low-damping lead–rubber bearing. Numerical results confirm that the proposed design method can effectively reduce the excessive isolator displacement without compromising other responses, including the floor response acceleration in the primary structure." @default.
- W4296456565 created "2022-09-20" @default.
- W4296456565 creator A5004512291 @default.
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- W4296456565 date "2022-09-19" @default.
- W4296456565 modified "2023-09-26" @default.
- W4296456565 title "Optimal Design of Nontraditional Tuned Mass Damper for Base-Isolated Building" @default.
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- W4296456565 doi "https://doi.org/10.1080/13632469.2022.2123413" @default.
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